package com.leiyuee.Lock;

/**
 * @Classname Daily220711
 * @Description TODO
 * @Date 2022/7/11 11:28
 * @Created K024851
 */
public class Daily220711 {

    public static void main(String[] args) {
        StringBuffer a = new StringBuffer("Runoob");
        StringBuffer b = new StringBuffer("Google");
        a.delete(1,3);
        a.append(b);
        System.out.println(a);


    }
}
